Delete geofencing implementation.

third_party/WebKit/Source/modules/geofencing/WorkerNavigatorGeofencing.h

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef WorkerNavigatorGeofencing_h
-#define WorkerNavigatorGeofencing_h
-
-#include "platform/Supplementable.h"
-#include "platform/heap/Handle.h"
-
-namespace blink {
-
-class Geofencing;
-class WorkerNavigator;
-
-// FIXME: Delete this class once ServiceWorkerRegistration is exposed in service workers.
-class WorkerNavigatorGeofencing final : public GarbageCollectedFinalized<WorkerNavigatorGeofencing>, public Supplement<WorkerNavigator> {
-    USING_GARBAGE_COLLECTED_MIXIN(WorkerNavigatorGeofencing);
-    WTF_MAKE_NONCOPYABLE(WorkerNavigatorGeofencing);
-public:
-    virtual ~WorkerNavigatorGeofencing();
-    static WorkerNavigatorGeofencing& from(WorkerNavigator&);
-
-    static Geofencing* geofencing(WorkerNavigator&);
-    Geofencing* geofencing();
-
-    DECLARE_VIRTUAL_TRACE();
-
-private:
-    WorkerNavigatorGeofencing();
-    static const char* supplementName();
-
-    Member<Geofencing> m_geofencing;
-};
-
-} // namespace blink
-
-#endif // WorkerNavigatorGeofencing_h